143745-39-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143745-39-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,7,4 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143745-39:
(8*1)+(7*4)+(6*3)+(5*7)+(4*4)+(3*5)+(2*3)+(1*9)=135
135 % 10 = 5
So 143745-39-5 is a valid CAS Registry Number.